1. Programmable Keypad: All keys are programmable. All key functions of the standard keyboard can be set, and a complex combination of shortcut keys can be realized with one key.<br> 2. Mini size, effectively saving desktop space. Detachable USB cable. You can connect a keypad (plug and play) and another keyboard at the same time on the same computer and they 't interfere with each other.<br> 3. Wide range of applications: The mini keyboard is suitable for office, gaming, music, media, industrial control, laboratory, production line testing and other fields, and is a good helper for many other types of users such as designers and video .<br> 4. Type-C to USB interface, no driver required, plug and play.<br> 5. This button can also be used to achieve complex operations, and is a good helper for office, games, music, media, and industrial control.. Mechanical key shaft, . Support ergonomic design. Support hot swap.<br> Available operating systems:for /vista/linux/.<br> Keys:4<br> Knob:No knob in 4 keys<br> Current and voltage:DC 5V/1A<br> Interface:Type-C<br> Axle:Outeum red switch<br> Product weight:58-68 grams<br> Note:The 4-key keyboard has no volume knob.<br> Operation Style:Mechanical<br> Language:English<br> Type:Wired<br> Application:Laptop<br> Keyboard Standard:Mini Keyboard<br> Interface Type:USB<br> Colour:Black<br> Material:Acrylic<br> Package Contents:<br> 1 * Mini Custom Keyboard<br> 1 * USB cable<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.